Perhaps you should try some spelling variations:
6.3 communication » 26.3 communication, 2.3 communication, 4.3 communication
inflation levels » inflation rates, education levels, pollution levels
developpement du » developpement de, developpement des, developpement et
a developpement » au developpement, de developpement, le developpement
levels primes » level frames, level price, levels prfs
primes 6.3 » primes 3
du afrique » en afrique, l afrique, de l'afrique
costs a » costs _, costs 4

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technology _ inflation levels primes 6.3 communication costs a developpement du afrique.*.